Welsh Salad Dressing - cooking recipe

Ingredients

1 egg
1 dash salt and pepper
1 tablespoon butter, melted
1/2 cup milk
1/2 cup warm water
1 tablespoon sugar
1 teaspoon mustard
1 tablespoon flour
1/2 cup vinegar

Preparation

Mix egg, sugar, salt and pepper together. Add flour and mustard.
Keep it a nice smooth paste.
Add melted butter, milk, water and lastly vinegar.
Cook over low heat until as thick as cream. Do not boil.
Keep in refrigerator.